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(11)

EP 4 128 799 A1

(12)

(43) Date of publication: 08.02.2023 Bulletin 2023/06 (21) Application number: 21717188.3 (22) Date of filing: 01.04.2021

(51) International Patent Classification (IPC):  H04N 21/234(2011.01) H04N 21/81(2011.01) H04N 21/431(2011.01) (52) Cooperative Patent Classification (CPC): H04N 21/4316; H04N 21/812; H04N 21/23424 (86) International application number: PCT/GB2021/050826 (87) International publication number: WO 2021/198702 (07.10.2021 Gazette 2021/40)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 03.04.2020 GB 202004965 (71) Applicant: Mo-Sys Engineering Limited London, SE10 0PA (GB)	(72) Inventors: GEISSLER, Michael Paul Alexander London, Greater London SE10 0PA (GB) UREN, James Michael London, Greater London SE10 0PA (GB) (74) Representative: Slingsby Partners LLP  1 Kingsway London WC2B 6AN London WC2B 6AN (GB)